I don't know where you've been the last 18 months, but even during the season where Ballistic was Introduced I'd get killed by a R99 in 0.5s from 175m away. It's nothing new.
Only thing I've noticed is I occasionally do more damage and get more kills, but my time to die is still the same.
My KDR has always been 0.24, now it's gone to 0.3. I see this season as an upgrade.
Plus the improvements to anti cheat seem to have eradicated most cheaters. I rarely have to report anymore.
Among the replies I see some bogus comments. Example: "The amount of third parties is an absolute disgrace this season. Apex is more unplayable than it's ever been and that's saying something." I see the opposite. This season is the most playable since Catalyst was introduced.
I've only been playing since the last week of Season of the Hunted, but I do have to say the thing that hurt me most was when they nuked revenant. Removed his Silence and Death Totem. My KDR was over 0.4 with that kit, without him I couldn't do over 0.28. His "pounce" is not a pounce, but a leap. If it were a pounce it would target and do damage.
And the cheat fest that has gone on since at least Ballistic's season, has now been almost eradicated. I wonder how long that will last though... I can actually have fair fights now. It feels the most balanced it has ever been.